Hi, NS.
<Win>+<Break>
As always (since Win98, at least): Hold down the Windows logo key while
pressing the Pause/Break key (in the upper right of most keyboards). The
System Information page should pop up in your face. I only have one
computer, so I haven't run the server versions, but in Vista Ultimate x64,
there is a line in the middle of that screen that says:
System type: 64-bit Operating System
There are other ways to get to this screen, but I like the quick response
from <Win>+<Break>. ;<)
There was a thread here a few days ago by someone wanting to check this from
a program. I'm not a programmer, so I didn't understand the answer, but you
should be able to find it if that is your question.
RC
--
R. C. White, CPA
San Marcos, TX
Microsoft Windows MVP
(Running Windows Mail 7.0 in Vista Ultimate x64)
"NS" <> wrote in message
news:BD501BC4-03D1-47D3-90E7-...
> Hi,
>
> How can I check if an Windows instalation is 64 or 32 bits?
> thanks
>
> NS